Soldering tool for aluminium and aluminium alloys



June 13, 1933. A LRlcH 1,914,054

SOLDERING TOOL FOR ALTUMINIUM AND ALUMINIUM ALLOYS Filed July 1952 2 Sheets-Sheet 1 WWW June 13, 1933. A, u 1,914,054

SOLDERING TOOL FOR ALUMLNIUM AND ALUMINIUM ALLOYS Filed July 15, 1932 2 sheets-Sheet 2 l v unng.

Patented June 13, 1933 UNITED STATES I P LTFE NT OFFICE ARTHUR ULRICH, OF ZURICH SWITZERLAND SOLDERING moor. FOR ALUMINIUM AND 'ALUMINIUMIALILOYS Application filed July 15, 1932, Serial No. 622,774, and. in s itzer'l ana iui' 24, 1.931.

This present invention relates to soldering tools of the type which may be used for soldering aluminium and aluminium alloys An object of the invention is to provide a device of this character having at its bearing surface a metal wire brush consisting of a number of tightly packed wires or bunches of wire, by which means the soldering seam may during the operation thoroughly be rubbed orbrushed while the molten metal is on said spot, which is absolutely necessary to obtain a solid joint for objects of aluminium,

or aluminium alloys.

Another object is to provide a heating means attached to said soldering-tool the flame of which may be directed at the same time on the tool and on the soldering joint or seam which is also necessary when soldering aluminium or aluminium alloys becausethose metals must constantly be heated on account of their good heat conductivity.

Other objects of the invention will become apparent as the description proceeds.

An embodiment of the invention is illustrated in the accompanying drawings wherein:

Fig. 1 is a side view of the soldering copper. Fig. 2 is a front view thereof. Fig. 3 is a perspective view of the device partly taken apart.

Fig. 4c shows an elevation of the .device being provided with a petrol vapor burner.

The soldering copper (Figs. 1-3) consists of two halves a and b riveted together. Those halves are thus cut out that, after they are riveted together, a longitudinal slot 0 is formed. In this slot 0 a bunch of wire d. is slidably arranged. This bunch alconsists of a great number of steel wire bristles welded at 6 onto a slide 7 which is attached with a pin 9 at a bridge h. This bridge has at both ends two semi-circular incisions into which the grooves z of the two adjusting nuts k fit. Those nuts may be screwed up or down along two spindles Z the lower extremities of which are jammed between the two halves a and b.

All according to what degree the nuts in are:

screwed down the metal bristle bunch CZ will be more or less protruding from the lower end of the slot 0.

' screw cover 0.

The protruding bristles form on the'bearing surface'of the soldering copper a narrow continuous'metal brush by means of which the. to be soldered together aluminium parts may I thoroughly be brushed during the operation i which is necessary to destroy the film of oxide prevent ng in ordinary cases the soldering or brazing of aluminium and aluminiumalloys.

, i As soon as the bristles are fretted and worn out the brush can easily be replaced. or doing this it is only necessary to remove the bridge jh by loosening the nuts 7: and to pull out the pin g whereuponthe worn out insertion piece 7, d may bereplaced by a new one.

' As it is possible to regulatethe length of 6b the bristles by means of the slide 7 the bunch of wire d may for instance completely be drawn back after the tin-solder has thoroughly been rubbed in, in order to continue the soldering operation without being hindered i by the protruding bristles.

InJFig. 4 is shown how the described soldering copper may be combined with a petrol vapor burner'which will permit to heat the copper and the to be soldered metal parts continuously during the soldering operation.

This burner has a petrol container m with an air pumpn and a filling opening shut off by a A tube 10 connects the container m with the actual burner 00 of a known construction. The petrol supply for this burner may be regulated by a screw valve 9.

The tube 9 is provided with a support 1' which may be turned up against the tube 19,

and with an arm 8 carrying the above described soldering iron. This arm may be regulated by means of a curved guide 6 and a clamp screw 'w. When soldering with the device it is necessary to heat up the copper and then the flame of the burner 00 is thus regulated that both the copper and the soldering joint are heated simultaneously. Then the molten tin-solder is applied and rubbed in, in order to destroy the film of the oxide of the aluminium or aluminium alloy and to secure a perfect soldering. 1 I

Having fully described my invention, what I claim is:

1. In a soldering-tool for aluminium and aluminium alloys, the combination of a soldering copper With a metal Wire brush slidably adjustable in the copper, as and for the purpose set forth.

2. In a soldering-tool for aluminium and aluminium alloys, the combination With a soldering copper, a bunch of tightly packed metal Wires or bristles movably mounted in a longitudinal slot of said soldering copper,

and means to move and fix said Wires or bristles in said slot so as to adjust the length of the bristles protruding from the lower end of said slot.

3. In a soldering-tool for aluminium and aluminium alloys, the combination With a soldering copper, a bunch of tightly packed metal bristles movably mounted in a longitudinal slot of said soldering copper, a slide attached to said bristles, a bridge to Which said slide may be fixed, grooved nuts to guide said bridge, and spindles anchored insaid soldering copper and along which said grooved nuts may be screwed up or down.

4. In a soldering-tool for aluminium and aluminium alloys, the combination with a soldering copper, an adjustable metal Wire brush, a liquid fuel burner, a turning joint connection in said burner with said copper, andmeans adapted to fix said copper in any desired position allowed by said turning joint. 7

In testimony whereof I aflix my signature.

ARTHUR ULRICH. 

